After the Drakh infect Earth with a plague, Captain Gideon is recalled home and given a new mission. Using the Interstellar Alliance's newest and most advanced ship, the Excalibur, he and his crew must search uncharted space for a cure for the plague within five years before it wipes out all life on Earth.
Galen reunites with an old friend when Excalibur comes to the aid of an Earthforce strip mining operation on an isolated agrarian world. Their efforts to obtain a mineral that may help in the search for a cure to the plague are hampered by a mysterious saboteur and the appearance of a gigantic golden dragon...
A further seven other episodes were assigned, three of which made it to the script stage but were left unfilmed, while "Tried and True" and the "Sword trilogy" did not complete the scripting phase, and the remaining two episodes of the intended 22 episode order were left unassigned.
According to posts by J Michael Straczynski, which are archived on jmsnews.com, TNT broadcast the episodes out of the intended sequence. The order of the episodes was then revised when they were re-broadcasted on the Sci-Fi channel, the Sci-Fi channel actually contacted Straczynski and asked which order he would prefer the episodes were broadcast. A third order was formally endorsed by Straczynski as the "true" chronological sequence of events for the filmed episode, as it appeared in The Official Babylon 5 Chronology (published in the pages of The Official Babylon 5 Magazine in 1999-2000). This particular ordering supersedes Straczynski's own "preferred" sequence from a strictly chronological and causal standpoint. The original broadcast order as set by TNT was used for the DVD releases.
Original broadcast order
Revised broadcast order (Straczynski's Preferred order)